211117007 has 2 divisors, whose sum is σ = 211117008. Its totient is φ = 211117006.

The previous prime is 211117001. The next prime is 211117031. The reversal of 211117007 is 700711112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211117007 - 2⁴ = 211116991 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211117007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211117001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105558503 + 105558504.

It is an arithmetic number, because the mean of its divisors is an integer number (105558504).

Almost surely, 2^211117007 is an apocalyptic number.

211117007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211117007 is an equidigital number, since it uses as much as digits as its factorization.

211117007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98, while the sum is 20.

The square root of 211117007 is about 14529.8660351705. The cubic root of 211117007 is about 595.4442056338. Note that the first 3 decimals are identical.

Adding to 211117007 its reverse (700711112), we get a palindrome (911828119).

The spelling of 211117007 in words is "two hundred eleven million, one hundred seventeen thousand, seven".